/*
 *  This file defines some important
 *  structures.
 */

#ifndef _MM_H
#define _MM_H

struct stack {	/* structure for stack */
	int s_date;
	struct stack *next;
};

struct queue {	/* strcture for queue */
	int q_date;
	struct queue *next;
};
static struct queue *front = NULL;
static struct queue *tail = NULL;
//static struct stack *top = NULL;

#endif

